Customer reviews from FIRMAN Power Equipment
Firman - B104201 Zero-E +1000 1040Wh Lithium Iron Phosphate Expansion Battery Pack with USB-C 100W Output (1040 Wh Capacity) - Black
Average customer rating
5 out of 5
5
(2 Reviews)
Open Ratings Snapshot
Rating breakdown 2 reviews
5 Stars
2
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
100%of customers recommend this product. 
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Customer Reviews for Firman - B104201 Zero-E +1000 1040Wh Lithium Iron Phosphate Expansion Battery Pack with USB-C 100W Output (1040 Wh Capacity) - Black
Customer Rating
5 out of 5
5
Easy addition to increase capacity
on March 24, 2024
Posted by: Oats
from Clearwater FL
Verified Purchase:No
Easy to install. With the fast charging and extra capacity it's worth the investment.
I would recommend this to a friend!
Written by a customer while visiting FIRMAN Power Equipment
Customer Rating
5 out of 5
5
Solar
on May 4, 2026
Posted by: NYsummer99
Best backup I’ve ever had. My solar array is off grid and recharges off 5 hours of sunlight. I’m saving lots of money.
Written by a customer while visiting FIRMAN Power Equipment